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The effectiveness of a new multibending scope for endoscopic mucosal resection
K Isshi1, H Tajiri, J Fujisaki
1Department of Endoscopy, The Jikei University School of Medicine, Tokyo, Japan. isshi-ki@jikei.ac.jp
Endoscopy
|April 2, 2004
Summary
A new multibending scope (M-scope) effectively treats gastric tumors in difficult locations. This advanced tool improves endoscopic mucosal resections (EMR) for challenging gastric tumor sites and larger tumors.
Area of Science:
- Gastroenterology
- Endoscopic Surgery
- Medical Device Technology
Background:
- Endoscopic mucosal resection (EMR) is standard for gastric tumors, with over 100 procedures annually at this institution.
- Difficult tumor locations include the gastric body's lesser curvature/posterior wall, cardia, and antrum's lesser curvature.
- A novel multibending scope (M-scope) with dual independently curving segments was developed to address these challenges.
Observation:
- The M-scope was used for EMR in 59 patients with gastric lesions.
- Lesion locations included the cardia, gastric body, and antrum.
- Effectiveness was evaluated by experienced endoscopists based on lesion location, EMR method, and tumor diameter.
Findings:
- The M-scope achieved an overall effectiveness score of 0.7 +/- 0.4.
- It demonstrated high effectiveness in difficult locations like the gastric body's lesser/posterior/greater curvatures and antrum's lesser curvature.
- The M-scope was effective for large tumors (≥11 mm) and both two-channel and IT-EMR methods.
Implications:
- The M-scope enhances EMR capabilities for gastric tumors in challenging anatomical sites.
- This technology offers a viable solution for resecting larger tumors endoscopically.
- The findings support the M-scope's utility in improving EMR outcomes for gastric neoplasms.